Contents

Overview

Conceptual prototype (DVB Mk0)

This is the very first muck-up that I used to get my Logitech Webcam Pro 9000 webcam on the air. Gstreamer and GNU Radio are connected using a named pipe.

Transmitter

Receiver

Transceiver

This simple, full duplex transceiver was created to allow using one computer and one USRP for both transmit and receive. By default, both the receiver and the transmitter are set to use the same frequency so that the receiver will receive what the local transmitter transmits; however, it can also be used to make two way video contacts.

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This transceiver has been running well on a 13" 2.4GHz MacBook Pro for more than 4.5 hours (video of the setup).

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Simulator

This simple simulator was used to test the idea before it was put on the air. It simply sends the video through a GMS modulator, mixes it with noise, the a GMSK demodulator.